document.write( "Question 896278: If A can Fill tank in 20 min and B can empty that tank in 30 min, If they work alternatively 1 min, then how much time has been taken to filled the tank completely. \n" ); document.write( "
Algebra.Com's Answer #543370 by josgarithmetic(39800) ![]() You can put this solution on YOUR website! A and B alternate over a 2 minute period for some quantity of these periods.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "Same as (1/20-1/30)*p, using p to count the number of these two-minute periods.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Fill 1 tank. \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "This means, \n" ); document.write( "2 hours. \n" ); document.write( " |